Did i see 30 Euros/week ?
I will respond as follows in the absence of speaking to the player's specific reality.
Anyone vaguely familiar with contemporary world economics news would attest to the Argentine economy as having experienced significant volatility in the foreign currency and exchange market. The underground market ("black") for the $/peso exchange has had very vigorous to robust moments, particularly tied to political winds and mismanagement of the economy and no doubt internal meddling from outside ... but not exclusively those.
It's an economy with distortions and football has been far from immune to them.
Typically only the daftest person would have considered a formal exchange rate when the informal market offered a ridiculously favorable premium on-the $.
Some name brand players have been known to refuse to be paid in pesos.
Where am I going with this?
In July 2018 there was a collective bargaining agreement that guaranteed players aged 16 to 18, who were playing in the top five domestic divisions, minimum salaries ranging from 13,200 pesos (bottom league ) to 21,000 pesos (top pro league). At that time the $ to peso exchange rate was about $1:27 pesos. Today on the official market, not even two years later, it's about 1:62 or 1:63 or thereabout. That would put a dent on anyone's purchasing habits without cost of living adjustments.
Previous bargaining agreements have been valid for three year periods but given the economic absurdities that characterize that economy you can guess what the problem is if the cost of living rises, consumer purchasing power is decreased etc. within that three year period.
So yearly modifications are what happens now. In the current year, even with modifications, minimums can't sustain basic monthly purchases (the minimum salary is below that sustainable to level with the consumer price index). For players over 18 in 2018 and playing in the top flight, the minimum was 25,000 pesos (1:27). This year these players were guaranteed 34,500 pesos. There was a corresponding 35% increase for the 16-18s. Do the math (35% of 13,200 to 21,000).
However, in the context of players that are being housed and fed by teams ... those in the youth categories ... they are like kids in your house: you feed them and shelter them and it counts for value. Why "pay" them?
This market is about betting on the future while learning to play at a very good level. Although the level has suffered a bit it is still second to one.